My father has decided to ________ smoking.—That’s good news for us.

It’s difficult——– me to learn English well.

The boy said ________ couldn’t he work out the problem but his teacher didn’t know how to do it.

Shanghai is the city ______ the 2010 world Expo is held. –So it is a city____ most of us want to vist this summer.

The story was written in _____ easy English ____ even the seven-year-old boy could understand it.